Yummo!!! This is a different version of the casserole that my 18 yo DS loves. I followed the ingredients as listed, but didn't measure the amounts of cheese or onions, just eyeballed them. This version uses twice the amount of butter but less sour cream and doesn't include the crushed corn flakes on top, but still tasted like our version, so he was happy, lol!! I served this with cucumber salad, baked beans and ham. Thanks for sharing the recipe. Made for Spring PAC 2011.